/*
 * Copyright 2020 io.xream.sqli
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.xream.sqli.builder.internal;

import io.xream.sqli.builder.Q;

import java.util.Map;

/**
 * @author Sim
 */
public interface ResultKeyGenerator {

    default String generate(String mapper, Q.X qx) {

        if (mapper.contains(".") && (!mapper.contains(SqlScript.SPACE) || !mapper.contains(SqlScript.AS) )) {
            Map<String, String> resultKeyAliaMap = qx.getResultKeyAliaMap();
            String alian = "c" + resultKeyAliaMap.size();
            resultKeyAliaMap.put(alian, mapper);
            String target = mapper + SqlScript.AS + alian;
            return target;
        }
        return mapper;
    }
}
